Those who want to access YouTube without ads have legit means that are fair to the content providers who mostly rely on the ad-supported revenue from them.
The rest should just use another site instead of trying to leech content, legally or through a loophole or not. If the content they want isn't elsewhere they should think about why it isn't. Content producers who don't want to support YouTube shouldn't post there either, there are many other options.
Those content creators aren't going to notice the few people who do care about protecting themselves from predatory corporations :yui_shrug: